// multi-utility computation suite · offline · instant · precise
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eng.concrete-mix-water-cement-ratio Calculator
Calculates water-cement ratio from mix design constituents and predicts 28-day compressive strength using Abrams' water-cement ratio law. Water-cement ratio is the single most important parameter controlling concrete strength, durability, and permeability.
Inputs
Water Kg
Total mass (kg). Distinct from weight — weight = mass × gravity. Mass is constant; weight varies with location.
Cement Kg
Total mass (kg). Distinct from weight — weight = mass × gravity. Mass is constant; weight varies with location.
Compressive Target Mpa
Reference formula or conversion factor shown for context.
Results
w/c ratio
The proportional relationship between two quantities.
estimated strength via Abrams (MPa)
The value at the specified point or condition.
target strength (MPa)
Sample size or count used in the calculation.
strength class
The classification assigned based on the computed value.
w/c guidance
Sample size or count used in the calculation.
ACI 318
Reference formula or conversion factor shown for context.